New mercantile tables, for expeditiously ascertaining the amount of goods, sold by the hundred-weight of 112 pounds, at any price, from one farthing to £20. cwt. ... each table extending from 1 lb to 4000 cwt. Also a table for reducing the long to the common hundred-weight. Calculated for the use of merchants, brokers, sugar refiners, wholesale grocers, &c., &c.

John. Houghton